Answer:
Greg is 19 and Teri is 11
Step-by-step explanation:
Greg = g
Teri = t
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Formulas:
2t-3= g
g+t = 30
Answer:
g = 19
t = 11
Check:
2(11)-3 = 19
19 + 11 = 30
Answer:
12.something units squared
Step-by-step explanation:
Answer:
894.19 mi/hr
Step-by-step explanation:
Total distance of the trip = 3990 mi
Let the speed of the sound be 'x' miles per hour
Now,
Total distance = Speed × Time
Therefore,
According to the question
3,990 mi = [ ( x - 120 ) × 0.1 ] + [ ( x + 410 ) × 3.0 ]
or
3,990 mi = 0.1x - 12 + 3x + 1230
or
0.1x + 3x = 2772
or
3.1x = 2772
or
x = 894.19 mi/hr
We are given with two inequalities and is asked to determine the solution to the given inequalities. x+2y ≤ 43x-y ≤ 2we can multiply equation 1 by -3 and add the two equations then. y is equal to 10/7 while x is equal 8/7. In this case, the region of domain is numbers less than 8/7 and that of range is numbers less than 10/7
